Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
So, just hold classes in your fish room each morning. Make it really interesting. Standing room only.
Then close the door (air tight seal).
When all the students keel over, the air will be so rich in CO2 that it will raise the CO2 in the tanks. Run a compressor big enough to handle all the tanks, or else an air pump on each tank.
Then the increase in O2 (all the plants will be pearling) will revive your students, and you can declare the experiment a success.